Epics Library Documentation
Table of contents
epics.get
epics.get (PV[, timeout])
Calls ca_get to retrieve the value of a PV accessible by the host.
Returns the value of the PV given or Nil if the PV cannot be reached.
| Parameter | Type | Description |
|---|---|---|
| PV | string | The name of the PV to request. |
| timeout | number | Amount of seconds to search for pv before giving a timeout, default is 1.0 (can be fractional). |
epics.put
epics.put (PV, value)
Calls ca_put to set the value of a PV accessible by the host.
| Parameter | Type | Description |
|---|---|---|
| PV | string | The name of the PV to request. |
| value | varies | The new value you want to set the PV to. The type of this parameter should match with the dbtype of the PV requested. |
epics.sleep
epics.sleep (seconds)
Tells the epics thread running the lua script to sleep for a given time.
| Parameter | Type | Description |
|---|---|---|
| seconds | number | Amount of seconds to sleep for (can be fractional). |
epics.pv
epics.pv (PV)
Returns a table representing a PV object. Index accesses can be used to retrive or change record fields. These changes are completed through ca_get or ca_put.
| Parameter | Type | Description |
|---|---|---|
| PV | string | The name of the PV to request. |